baber/WOPTO huggingface dataset:
Patent JP-H06345730-A (JP)
Title: Production of bismaleimide
Inventor: SUZUKI MASAJI
IPC: C07D207/452
Filed: 1993-06-11
Abstract: PURPOSE:To obtain high purity, crystalline 2,2-bis[4-(4-male-imidephenoxy)phenyl] propane with low melting point, which has high solubility in solvents and excellent operability, by an industrially advantageous and easy method. CONSTITUTION:In a mixed solvent of an aromatic hydrocarbon and aprotic polar solvent 2,2-bis[4-(4-aminophenoxy) phenyl] propane and maleic anhydride are reacted to perform addition reaction at a low temperature to produce a bismaleamidic acid, and then the product is ring closed with dehydrartion in the presence of an acid catalyst, while azeotropically eliminating produced water with the aromatic hydrocarbon solvent, to produce the bis-maleimide. The reaction mixture is washed with water, and then the bis-maleimide is precipitated by cooling the reaction mixture at or lower than 40 degree C. The precipitate is separated by filtration and is dried by eliminating the solvent contained in it at or higher than a rate of 0.2g/hr/100g, until the solvent content becomes one weight % or less.
Patent JP-S6032939-A (JP)
Title: Carburetor chamber
Inventor: NAGASHIMA AKIRA
IPC: F02M17/36
Filed: 1983-08-01
Abstract: PURPOSE:To obtain stable idle rotation and good acceleration performance by improving adiabatic effect of a carburetor by connecting a mixed gas hole in a carburetor to a cylinder air inlet through a draft drum made of heat insulating material. CONSTITUTION:In a chain saw, a cylinder 3 is provided in the upper portion, a crank case 4 is provided in the lower portion, and a carburetor 6 is also provided behind the cylinder 3. A mixed gas hole of the carburetor 6 is connected to a cylinder air inlet 8 through a draft drum 7 made of heat insulating material. The carburetor 6 is provided in a box-shaped body 11 which is fixed onto an extended flat portion 5 of the crank case 4. In this way, mixed gas composed of fuel and air can surely be fed to a cylinder, so stable slow operation and good acceleration performance can be obtained.
Patent JP-S5566941-A (JP)
Title: Chlorine-containing resin composition
Inventor: FUJITA KOUTAROU
IPC: C08L27/04
Filed: 1978-11-15
Abstract: PURPOSE: To improve the flame retardancy and heat resistance, and to reduce initial color of the title composition, by incorporating one type of chlorinated paraffin and zinc borate, a lead stabilizer, and a polyhydric alcohol into a chlorine- containing resin.  
     CONSTITUTION: A resin composition prepared by kneading (A) 100 parts by wt. of a chlorine-containing resin with (B) 1W50 parts by wt. of one type of chlorinated paraffin and zinc borate, (C) 0.05W10 parts by wt. of a lead stabilizer, e.g. white lead or tribasic lead sulfate, and (D) 0.1W5 parts by wt. of a polyhydric alcohol, at a suitable temperature. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S6031264-A (JP)
Title: Latch-up preventing circuit of ic and lsi
Inventor: HORINOUCHI KAZUYUKI
IPC: H01L27/08
Filed: 1983-07-29
Abstract: PURPOSE:To prevent the latch-up by a method wherein a power source is separated into two systems of an internal logic circuit and a peripheral logic circuit, and a current restricting resistor is inserted to the power source terminal of the latter circuit. CONSTITUTION:The LSI is composed of the internal logic circuit 2 and the peripheral logic circuit 3, and the power source VDD is separated into the two systems of each logic circuit, and the current restricting resistor R is inserted to the power source terminal Q of the peripheral logic circuit particularly liable to generate latch-up. When a current IR flows by the generation of latch-up, the voltage at the point Q becomes approx. 0 volt, and accordingly the latch-up stops. Since, at the point P, the variation of voltage at the time of latch-up generation becomes at the ratio of the internal resistance (r) of the power source to the current limiting resistance R as the protection for the LSI, particularly the circuit 3, the variation of voltage under the condition of R>>r can be neglected, and while the circuit 2 acts normally even during the latch-up.
Patent JP-S62297047-A (JP)
Title: Program checker for memory module
Inventor: TAKEUCHI TAKAHIKO
IPC: B23Q17/00
Filed: 1986-06-17
Abstract: PURPOSE:To make it possible to check memory contents easily by issuing a read command via a reading head to a memory module and decoding program data transferred from the memory module according to the read command. CONSTITUTION:An induction coupler coil 22 for signal reception in which frequency signals are induced according to data read out when the coil receives external magnetic field from a memory module side is arranged at a reading head 12. The frequency signal on the memory module side obtained by the induction coupler coil 22 is given to an FM decoding circuit 24 of a checker main body 10. The FM decoding circuit 24 converts received signal into a data bit '1' or '0' according to presence or absence of the frequency signal. A serial bit data is converted into a parallel bit data by means of a serial interface 25 and is supplied to a reading controller 14 which decodes a program name and others and displays them on a display 50 by characters or codes.
Patent JP-H07323636-A (JP)
Title: Printer
Inventor: SHINKAWA KOJI
IPC: G06F3/12
Filed: 1994-05-31
Abstract: PURPOSE:To prevent that an integral image of a frame is printed so as to straddle pages by providing a control means controlling the image data memory state of a memory means so that the image stored in the memory means is not printed so as to straddle a plurality of the pages of a printing medium at the time of printing. CONSTITUTION:The operation data of the respective keys in a key input part 1 are inputted to a CPU 2 and a display driving circuit 5 and a printing conversion processing part 7 are controlled on the basis of the data stored in the RAM 4. The RAM 4 has a text memory part 4A, a display/printing character memory part 4B and a line control buffer 4C. The CPU 2 discriminates whether line feed is performed within the document of the text memory part 4A when a character is inputted and, when there is line feed processing, the use region of a frame is checked by the line control buffer 4C and, when it is judged that the use region of the frame straddles pages, page feed data is inserted in the head line of the frame and frame data is moved to a next page.
Patent JP-H07325227-A (JP)
Title: Optical receiver integrated with optical terminating box
Inventor: NAKAMURA SATOSHI
IPC: H01L31/0232
Filed: 1994-05-31
Abstract: PURPOSE:To provide an optical receiver which is small in size and is easy to handle by commonly using an optical terminating box and an optical receiver. CONSTITUTION:Two box bodies 1, 2 are connected by hinges, etc., and are made freely openable and closable. The one box body 1 thereof is so formed that the surplus length part 5 of the optical fibers 4 of a leading-in side optical cable 3 and the surplus length part 8 of the optical fibers 7 of a leading-out side optical fiber cable 6 are wound to an annular form and are housed therein. In addition, this box body is formed as the optical terminating box 9 capable of connecting the ends of both optical fibers 4, 7 to each other. The other box body 2 is internally provided with the optical receiver 10 which converts the optical signal from part of the optical fibers 4 among many pieces of the optical fibers 4 led out of the lead-in side optical cable 3 to electric signals, then outputs these signals.
Patent JP-S6031064-A (JP)
Title: Start inspecting system of magnetic disc apparatus
Inventor: YAMAMOTO KOUICHI
IPC: G11B20/18
Filed: 1983-08-01
Abstract: PURPOSE:To enhance the reliability of a disc, by performing cleaning operation on the basis of the seek operation of a magnetic head prior to writing or reading operation, and detecting the presence or absence of a writing and reading error after sweeping off dust accumulated on a disc. CONSTITUTION:When operation is started after long-time stoppage, a rotation order signal is sent to a spindle motor 12 from a power source circuit part 4 and a disc 10 performs steady rotation. A seek operation order is applied to a positioning apparatus 8 by the order of a processor and dust accumulated on the disc 10 is swept off out of the magnetic disc 10 by a head 9. When seek operation is finished, the magnetic head 9 receives positional determination on the examination diagnostic track of the magnetic disc 10 by the order of a positioning circuit part 7. The collation with writing data is performed in a control circuit part 5 and the presence or absence of writing and reading errors is detected. As mentioned above, because the presence or absence of the writing and reading errors is detected to enable confirmation, the reliability of the disc can be kept.
Patent JP-S621317-A (JP)
Title: Pulse width modulation signal generator
Inventor: YAMAMOTO SHOKO
IPC: H03K7/08
Filed: 1985-06-27
Abstract: PURPOSE:To simplify the circuit by starting the operation of each counter based on a count-up signal of the other counter and using the pulse width modulation ratio setting value of the preceding and this time so as to decide the preset of the counter. CONSTITUTION:A data nA of a counter 1A is preset by the leading of the count-up signal of a down counter 1B and the operation of the counter 1A is started at the trailing. Further, a data nB of the counter 1B is preset at the trailing of the count-up signal of the counter 1A and the operation of the counter 1B is started at the trailing. A carrier frequency of a triangle wave depends on the nA, nB and is varied easily.
Patent JP-H09299845-A (JP)
Title: Paste applicator for wallpaper
Inventor: MIYAKI KANJI
IPC: B05C1/08
Filed: 1996-05-10
Abstract: PROBLEM TO BE SOLVED: To facilitate the opening/closing work of a foot part and to improve the stability of an apparatus in use by providing a lock member which contacts the side of the foot part to hinder it form being retracted and a holding means which holds the lock member movably to the allowable position of the rotational motion of the foot part to be retracted. SOLUTION: The foot part of a paste applicator for wallpaper, in which feet 1 are attached freely rotatably at four corners of the lower surface of a base part 8 respectively, supports a main body part 10 in a suspended state when it is used and is rotated and deformed to be folded below the main body part 10 when it is retracted. A round rod 3 as a lock member, a pulling spring 4 constituting an energization means, and a long hole 5 as a holding means are formed in the root part of the foot l. The rod 3 holds the inside of the hole 5 slidably and is energized toward the lower end of the hole 5 by the spring 4. In this way, force to move the foot 1 in the rotational direction is received by the hole 5 to hold the foot 1 stably when it is used.
Patent JP-H07325461-A (JP)
Title: Electrifier, image forming device and process cartridge
Inventor: YANO HIDEYUKI
IPC: G03G15/02
Filed: 1994-05-31
Abstract: PURPOSE:To prevent a failure in electrification caused by the soiling of a contact electrifier and a deterioration in the quality of an output image, etc., due to the failure in tame electrification by providing a member in contact with the contact electrifying member for cleaning it. CONSTITUTION:This member 7 coming into contact with the surface of the electrifying member 2 to clean it is provided. In this case, in an image forming device and a process cartridge, the cleaning member 7 comes into slidable contact with the contact electrufying member 2 to clean it by scraping and wiping toner, a toner external additive, etc., stuck to the surface of the contact electrifying member 2. Therefore, the surface roughness average of the cleaning member 7 is set >=50mum. Moreover, some practical nip width where the cleaning member 7 comes into slidable contact with the contact electrifying member 2 is required and when the surface of the cleaning member 7 is rough, the effect of the slidable contact at the time of passing a nip is reduced so that the surface roughness average is set <=10000mum. When the surface roughness is out of this range, cleaning work is poor and a practical use is not obtained.
Patent JP-2000332346-A (JP)
Title: Semiconductor laser and optical wavelength conversion module
Inventor: SONODA SHINICHIRO
IPC: H01S5/00
Filed: 1999-05-21
Abstract: PROBLEM TO BE SOLVED: To prevent fluctuation in the quantity of wavelength converted light due to longitudinal mode conflict by superposing a high frequency wave on the driving current of a semiconductor laser where a plurality of FP(Fabry- Perot) modes between the opposite cleavage surfaces exist within the transmission half peak width of a wavelength select element. SOLUTION: A narrow band band-pass filter 14 is disposed in an external resonator comprising the forward end face of a semiconductor laser 10 and a mirror 20 in order to select the wavelength of a laser beam 11 passing therethrough. The semiconductor laser 10 is oscillated with a selected wavelength and the select wavelength is varied depending on the rotational position of the narrow band band-pass filter 14. Oscillation wavelength of the semiconductor laser 10 is selected and locked in correspondence with the period at a domain inverting section 17 such that pseudo-phase matching can be taken with second harmonic 19. A high frequency wave is superposed on the driving current such that a plurality of FP modes exist between the opposite cleavage surfaces of the semiconductor laser 10 within the transmission width of the band-pass filter 14.
Patent JP-H10330425-A (JP)
Title: Processing auxiliary for styrene-based resin and styrene-based resin composition using the same
Inventor: WAKABAYASHI SHIGEO
IPC: C08F12/04
Filed: 1997-05-30
Abstract: PROBLEM TO BE SOLVED: To obtain the subject auxiliary consisting of a high-molecular weight styrene-based polymer with a specific molecular weight and capable of improving the processability of styrene-based resins, in particular, in their expansion molding, vacuum molding, air pressure molding and blow molding. SOLUTION: This processing auxiliary consists of a styrene-based polymer >=80 wt.% of which is composed of an aromatic vinyl monomer (e.g. styrene) and having a weight-average molecular weight of >=1,500,000 determined by gel permeation chromatography. The objective styrene-based resin composition good in processability is obtained by compounding 100 pts.wt. of a styrene-based resin (e.g. polystyrene resin) with 0.5-20 pts.wt. of the above auxiliary.
Patent JP-S62298811-A (JP)
Title: Numerical controller
Inventor: IMAIZUMI HAJIME
IPC: G05B19/406
Filed: 1986-06-19
Abstract: PURPOSE:To take an exact diagnosis in conformity with the condition by enabling a user to input and store a diagnostic program. CONSTITUTION:A numerical controller has a CPU 1 of normal constitution for controlling a machine tool 4, a machine control processor 3, a driving means 6, a sequence controller 7, memories 5 and 8, and a main memory 2 as well as a keyboard where a diagnostic programs is generated by inputting a diagnostic program, a read/write memory 11 for storing the generated diagnostic program, and a CRT display 12 for displaying the generated diagnostic program. When a maker-made diagnostic can not make a sufficient check, the user generates a diagnostic program conforming with the condition and executes it. The execution is performed when a specific flag of a sequence program reaches a specific value.
Patent JP-H08332637-A (JP)
Title: Mold temperature controller
Inventor: KURAMOTO YOSHIHIKO
IPC: B29C45/72
Filed: 1995-06-08
Abstract: PURPOSE: To provide a mold temperature controller for controlling quickly and accurately the temperature of a molding face of a plastic molding die to the target temperature. CONSTITUTION: In the constitution of a mold temperature controller X provided with a temperature controller 3 for heating and controlling a temperature control medium F of a plastic molding die 1, a temperature sensor S3 of a non- contact type is disposed in the vicinity of a surface 1S of the plastic molding die 1, and the measured value measured by the temperature sensor S3 as a temperature measurement signal T1 is input into the temperature controller 3, and the temperature control medium F is controlled to the target temperature.
Patent JP-H11341337-A (JP)
Title: Signal processor, image-pickup system, and phase synchronizing method
Inventor: KAWAI HISASHI
IPC: H04N5/335
Filed: 1998-05-22
Abstract: PROBLEM TO BE SOLVED: To correct the phase difference between a synchronizing signal for camera head drive and a synchronizing signal for signal processing which is caused by cable length in a head division type image-pickup system. SOLUTION: This signal processor, which processes an image signal from a camera head connected through a cable had a standard signal generation circuit (201) which outputs the synchronizing signal for camera head driving and outputs the synchronizing signal for image signal processing after the lapse of a fixed time, a variable delay circuit (216) which delays the synchronizing signal for camera head driving, a buffer circuit (207) which receives control data from the camera head, and a phase comparator circuit (215) which compares the phase of the start timing of prescribed data of received control data with the phase of the start timing of a prescribed signal in the signal processor and outputs a phase comparison result signal. The variable delay circuit controls the delay time of the synchronizing signal, based on the outputted phase comparison result signal.
Patent JP-H09326873-A (JP)
Title: Information transmission system
Inventor: NAGAI TAKESHI
IPC: H04N19/164
Filed: 1996-06-04
Abstract: PROBLEM TO BE SOLVED: To provide the information transmission system by which an information signal such as image or voice is sent with required sufficient quality. SOLUTION: In the information transmission system that a transmitter side 101 converts an information signal into a prescribed transmission signal and the converted signal is sent to a receiver side 106 via a transmission line 105 and the receiver side 106 converts the transmission signal into an information signal, the number of transmission lines is decided by sending/receiving signals between the transmitter side 101 and the receiver side 106. The transmitter side 101 uses a divider 102 to divide the information signal 100 into the information signals of the same number of channels as the decided line number and a code string of a plurality of channels is sent to the receiver side 106 via a coder 103, a transmitter 104 and a transmission line 105.  The receiver side 106 converts the code string of a plurality of channels to be received into information signals via a receiver 107 and a decoder 108 and the signals are synthesized by a synthesizer 109 and a reproduction information signal 110 is obtained.
Patent JP-S5474890-A (JP)
Title: Preparation of acrylamide polymer
Inventor: OGAWA YASUO
IPC: C08F20/52
Filed: 1977-11-28
Abstract: PURPOSE: To prepare a water-soluble acrylamide polymer having excellent solubility and coagulating characteristics, by the simultaneous polymerization and hydrolysis of an aqueous solution of a monomer mainly composed of an acrylamide produced by a catalytic process, with a redox initiator having a specific concentration.  
     CONSTITUTION: A 10-30wt% aqueous solution of monomers wherein major component is acrylamide prepared by the hydrolysis of acrylonitrile in the presence of a Cu-containing catalyst, is subjected to the simultaneous polymerization and hydrolysis using a redox-type initiator comprising a peroxide (Per.) and an amine reducing agent (Red.). The concentrations of the compounds are selected to satisfy the following formulas: Red./Per.=15-1000 (mole); [red.] x [Per.]=0.5x10 -8 -50x10 -8  (ppm). The amine reducing agent is, e.g. monoethanolamine, nitrilotrispropionamide, etc. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-2000328727-A (JP)
Title: Clip for roof material
Inventor: HORIIKE ISAO
IPC: E04D3/36
Filed: 1999-05-21
Abstract: PROBLEM TO BE SOLVED: To surely fix flap roof materials connected in the horizontal direction of a roof surface by providing a seam part hook-like in section interposed between a lower seam part and an upper seam part of a flap roof material with a bent part extending along the direction intersecting the longitudinal direction of a clip. SOLUTION: A seam part 11 is provided with a bent part 13 substantially rectangular in section, which is extended in the direction intersecting perpendicularly to the longitudinal direction of a clip 1 from an engagement piece 11a to a suspending piece 11c. By the bent part 13, the rigidity of the seam part 11 is increased so that the strength to the force (lifting force) to the flap roof material where seams are connected can be improved. If dimensional limitation is allowed, the more the number of bending parts 13 is, the more the strength can be improved. Thus, even if the flap roof material is lifted upward, the possibility that the clip 1 is pulled out of the seam connecting part of the flap roof material can be reduced so as to heighten safety.
Patent JP-H05330976-A (JP)
Title: Single crystal production system
Inventor: KUROSAKA SHOEI
IPC: H01L21/208
Filed: 1992-06-02
Abstract: PURPOSE:To continuously obtain single crystal with high purity and high quality by monitoring the sagging state of a silicon melt from a material rod by optical sensor to control the driving conditions for a heater or the descending rate of the rod. CONSTITUTION:The level of a material melt in a material feed mechanism 30 is detected by a television camera 2 and the amount of light received is amplified by an amplifier 3 and outputted via a comparative circuit 4, a waveform trimming circuit 5 and a shift register 6, to the first CPU 8. The spacing between the adjacent peaks of the outputted waveform is measured by the CPU 8 to calculate the sag diameter of a silicon material melt. According to this value, the driving of a heater 13 for melting polycrystalline silicon rod and the feed rate of a silicon polycrystalline rod 301 are controlled by the second CPU 16.
Patent JP-H04367476-A (JP)
Title: Instant food container for microwave oven
Inventor: MOMOKAWA KOICHI
IPC: B65D81/34
Filed: 1991-06-13
Abstract: PURPOSE:To automatically open a seasoning bag-like container filled with seasoning by the heating effect of microwaves to pour seasoning over food, by a method wherein the seasoning bag-like container is made of thermal shrinkable resin film provided with easy-breakable cut marks, and semi-cut through- holes are formed on a top cover with plastic pins. CONSTITUTION:Boiled rice 20 with a slice of grilled eel 21 atop is placed in a butter container 10, and sealed parts 13 along two opposite sides of a bag-like container 12 filled with soy sauce seasoning 22 are attached and held on a top cover 11 with heat-resistant double-side adhesive tape 14. The bag-like container 12 is produced in such a way that X-shape cut marks are cut on a thermal shrinkable nylon film in oblique lattice pattern at intervals of 4cm with a clicking die, a non-oriented polyethylene film and a low density polyethylene film are laminated respectively on the inside and outside of the bag, and the laminate is formed into the bag in which soy sauce seasoning 22 is filled. Then, when heated with a microwave oven, the bag-like container 12 filled with soy sauce seasoning 22 bursts open 60 seconds after, so one may appreciate the delicious taste of boiled rice with grilled eel.